Rotary brush roll



Aug. 17, 1965 F. HARACZ ROTARY BRUSH ROLL 2 Sheets-Sheet 1 Filed Aug.22, 1963 INVENTOR. Iflaz'ac;,

Eduard 61-41 AZZZwes K Aug. 17, 1965 E. F. HARACZ ROTARY BRUSH ROLL 2Sheets-Sheet 2 Filed Aug. 22, 1963 INVENTOR.

BY 4r'aamu 4 ur,

United States Patent 3,200,430 RQTARY BRUSH ROLL Edward F. Haracz, 161Pershing Ave., Clifton, NJ. Filed Aug. 22, 1963, 'Ser. No. 303,772 4Claims. (Cl. 15-183) This invention relates to improvements in rotarybrush rolls adapted to be mounted in connection with actuatingmechanisms and, as so actuated, being adapted to effect various desiredpurposes. For example, the rotary brush rolls, according to thisinvention, are especially well adapted for use in dulling machines,wherein one or more of said brush rolls are caused to brush againstglass, aluminum, decorative plastics, or other materials opposed theretoby fixed anvil rollers.

This invention has for an object to provide a construction of a rotarybrush roll having novel means firmly and securely to support, upon andaround its circumferential surface, a plurality of radial brush bristleunits of a known standard conventional type.

More particularly, a further object of this invention is to provide abrush roll of novel construction which is adapted to be produced fromsuch inexpensive materials that, when so worn in use as to requirereplacement, the brush roll as a whole is expendable, i.e. may beeconomically removed in its entirety from its actuating mechanism andthrown away, subject to replacement by a new brush roll of likecharacter, rather than removing the brush roll structure from theoperating mechanism and then dismantling the same, and thereupon merelyreplacing the bristle brush units thereof; all of which requires muchexpenditure of time and labor, and consequent long interruption of useof the mechanism by which the brush roll structure is actuated.

The above stated and other objects will become apparent from a readingof the following description of illustrative embodiments of thisinvention in connection with the accompanying drawings thereof, in whichdrawings:

FIG. 1 is a side elevational and part longitudinal sectional view of oneembodiment of a brush roll according to this invention, with the brushbristle units mounted to extend parallel to the axis of the same;

FIG. 2 is a fragmentary side elevational view of the brush roll, withthe brush bristle units mounted in spiral or diagonal relation to theaxis of the same;

FIG. 3 is a fragmentary end view, in perspective, of a brush bristleunit employed in a brush roll structure according to this invention;

FIG. 4 is a fragmentary end view, in perspective, of one form of a brushbristle mounting member of the brush roll structure;

FIG. 5 is a fragmentary end view, in perspective, of the brush bristlemounting member of FIG. 4 having a brush bristle unit of FIG. 3assembled therewith and supported thereby;

FIG. 6 is a fragmentary end view, in perspective, of the brush bristlemounting member with a modified arrangement of brush bristle unitassembled therewith;

FIG. 7 is an enlarged fragmentary cross-sectional view of the brush rollof FIG. 1, taken on line 7-7 in said FIG. 1;

FIG. 8 is a side elevational view, in part longitudinal section, showinga modified form of brush bristle unit mounting means of a brush rollstructure within the scope of this invention, the brush bristle unitsbeing omitted;

FIG. 9 is a cross-sectional view of the same, taken on line 99 in FIG.8, and showing one brush bristle unit in place; and

FIG. 10 is a fragmentary side elevational view of a further modifiedform of brush bristle mounting means the brush bristle units beingomitted.

Like characters of reference are applied in the several views abovedescribed to indicate corresponding parts of the brush roll structure ofthis invention.

Referring first to FIGS. 1 to 7, inclusive, of the drawings, oneembodiment of a brush roll according to this invention as shown therein,and of an expendable or throw-away type, comprises a cylindrical tubularcore 11 having open ends, the same being preferably made of paper orother inexpensive material. A plurality of circumferentially spacedlongitudinally extending brush bristle units are adapted to be mountedupon and around the external surface of the core 11, with their bristlesprojecting radially therefrom. Said units are supported by mountingmembers which are afiixed to said core, all as hereinafter moreparticularly described. The mounted brush bristle units may extendendwise parallel to the axis of the core 11 (as shown in FIG. 1), or inspiral or diagonal relation to the axis of said core (as shown in FIG.2), the latter arrangement being preferable for many uses of the brushroll in practice.

A known and conventional form of commercially available brush bristleunit, suitable for use in the production of a brush roll according tothis invention, is shown in FIG. 3. This brush bristle unit comprises abristle holder provided by a backing member 12 of suitable length and ofU-shape in cross-section, thus providing an upwardly or outwardly openchanneled formation, made of metal or other suitable rigid material.Extending longitudinally through the interior of the backing member 12is a binder wire 13. Brush bristles 14 are folded around the binder wire13 within the interior of the backing member 12, with the free endportions 15 thereof projecting outwardly through the open top of thelatter. The side walls of the backing member are bent inwardly, onetoward the other, thereby to grip the bristle folds, and thus to securethe bristles against outward escape or displacement from the backingmember.

The mounting members M, as shown more particularly in FIG. 4, eachcomprise a longitudinal body portion 16 which is, preferably, laterallytapered from its outer top surface toward its inner bottom surface,thereby to provide inclined side surfaces 17. Extending longitudinallythrough the body portion 16 is an outwardly open channel 18 havingconvergent inclined sides 19. This channel 18 is sized to conform incross-sectional shape to the cross-sectional shape of a backing member12 of a brush bristle unit, so that the latter can be slid endwise intoand through said channel 18, whereby to seat said unit therein inretained assembled relation to the mounting member, as shown in FIG. 5.Further to secure the unit against outward or radial displacement fromthe mounting member M, the outer marginal edge of the channel sides 19terminate in inwardly projecting retaining ribs 20 which overhang thefree edges of the side walls of the backing member 12 of the brushbristle unit, when the latter is assembled within the mounting member.For purposes later herein to be described, one exterior side of the bodyportion 16 of the mounting member is provided with a longitudinallyextending, outwardly projecting interlocking tongue 21, and the oppositeexterior side of the body portion 16 is provided with an indentinginterlock groove 22, which conforms to and receives the interlockingtongue of an adjoining mounting member, when said mounting members areassembled in side by side relation upon and around a brush roll core 11,as will subsequently be described. At least the bottom surface of thebody portion 16 of each mounting member M is preferably concavely curvedtransversely so as to conform to the curvature of the external surfaceof 3 the brush roll core 11, when the mounting members are attachedthereto.

The mounting members M may be and are preferably formed by extending thematerial thereof through a shaping die. Ordinarily, said mountingmembers are provided in suitable lengths from relatively inexpensivematerial, such e.g. as plastic material, aluminum, or the like.

It may here be pointed out that the brush bristle unit may be modifiedto omit the backing member 12 so as to comprise a brush bristle fold 14around .a binder wire 13', and adapted to be directly enclosed and boundwithin the channel 18 of the body portion16 of a mounting member M, withthe free end portions 15 of the bristles projecting radially outwardfrom the top of the mounting member (see FIG. 6).

Although the mounting members as shown are each provided with a singlechannel 18 for reception of a brush bristle unit, it will be understoodthat said mounting members may, if desired, be of such width as toprovide more than one brush bristle unit seating channel 18.

To assemble the brush bristle unit equipped mounting members M with thebrush roll core 11, said mounting members (as shown in FIGS. 1, 2, and7) are arranged side by side around said core in longitudinal extensiontherealong. Any suitable means can be used to secure the mountingmembers in place upon said core. A suitable method of so securing themounting members is by means of an intervening coating or layer 23 of asuitable high strength adhesive of cement, such e.g. as an epoxy resin(see FIG. 7). In the side by side disposition and assembly of themounting members, when the latter are provided with interlocking tongues21 and grooves 22, the tongue and groove elements engage betweenadjoining mounting members, thus interlocking the same together againstoutward radial displacement from the core 11, in the event of failure atany point of the adhesive bond between said mounting members M and brushroll core 11.

As shown in FIG. 1, the mounting members M can be provided in lengthexceeding the lengths of the contained brush bristle units, whereby toprovide end portions M extending beyond the ends of the contained brushbristle units. In such case, annular end collars r caps 24 can beaflixed to the core 11 so as to embrace said end portions M, wherebyfurther to secure the mounting members in assembled relation to the core11, while at the same time abutting the ends of the contained brushbristle units so as to hold the latter against longitudinal shift ordisplacement relative to said mounting members.

Referring now to FIGS. 8 and 9, a modified construction of a brush roll,within the scope of this invention, is shown therein, the same beingwell adapted to provide an expendable or throw-away type thereof, whichcan, in its entirety, be conveniently and economically discarded, whenso worn as to terminate its useful life. This modified brush rollstructure also comprises the tubular cylindrical core 11 having openends and adapted to be produced from paper or other relativelyinexpensive material. The core 11, in this case, is provided withmodified means for mounting the brush bristle units thereupon, the samecomprising annular holder members adapted to be stamped out of sheetmetal or other appropriate material. This modified holding means isformed to provide an annular base flange 25 having a radially projectingmounting flange 26 at a right angle thereto. The outer marginal portionsof said mounting flange 26 are indented by circumferentially spacedapart, outwardly open U-shaped slots 27, having convergent sides 28 anda size to conform in cross-sectional shape to the cross-sectional shapeof a backing member 12 of a brush bristle unit. The outer ends of theslot sides 28 terminate in inwardly projecting keeper lugs 29 adapted tooverhang the free edges of the side walls of the backing member 12 of anentered brush bristle unit, whereby to retain the latter against outwardradial displacement.

A plurality of the above described annular holder members 2526 aremounted on and around the core 11, in suitably longitudinally-spacedapart relation, with their base flanges riveted, cemented or otherwiseafiixed to the external surface of said core 11, and with their slots 27in more or less longitudinal alignment. When so mounted on the core 11,brush bristle units can be longitudinally slid into place through thealigned slots 27 of said holder members, so that their bristles projectradially from the external circumference of the supporting core 11 (seeFIG. 8).

Referring to FIG. 10, a further modification of the above describedbrush bristle unit mounting means is shown, wherein the base flange 25'and the holding flange 26 thereof are formed as a continuous element orstrip adapted to be spirally wound around and secured to the core 11,with the slots or openings 27 of the convolutions thereof longitudinallyaligned for the lengthwise reception and support of the brush bristleunits therebetween.

The above described forms of brush roll construction are designed toprovide an expendable or throw-away type of brush roll, and one such aswill be adapted removably to be attached to actuating mechanism by themeans and in the manner disclosed in my co-pend-ing patent application,Ser. No. 216,837, filed August 14, 1962.

Although, so far as the brush bristle unit mounting means is concerned,the same are primarily designed for use in an inexpensive expendable orthrow-away type of brush roll, it will, nevertheless, be understood thatthe described mounting means can be advantageously used in permanenttypes of brush rolls by applying the same to permanent mandrels, shaftsor brush base cylinders of .a machine desired to be equipped with brushrolls.

Although my invention has been illustrated and above described withrespect to specific embodiments thereof, it will, nevertheless, beunderstood that it is intended to cover all changes and modifications ofthe embodiments shown which do not constitute departures from the spiritand scope of the appended claims.

I claim:

1. A brush roll comprising a cylindrical core, a plurality oflongitudinal brush units each comprising a backing member having agenerally U-shaped cross-section and a folding bristle assembly havingits fold imbedded and secured in the packing member with the bristlesprojecting radially therefrom, and a plurality of longitudinallyextending brush unit mounting members having a polygonal cross-sectioncomprising a base, a top wider than said base, and at least twointermediate sides inclined inwardly from said top toward said base,each of said mounting members having at least one outwardly open channelof generally U-shaped cross-section extending longitudinallytherethrough, said channel being adapted to receive and hold the backingmembers of the longitudinally extending brush units with the brushportions extending through said channel, said mounting members beingsecured to and around the external surface of said core in contiguousside by side relation with the base of the polygonal cross-section ofeach mounting member adjacent said core and with the inclined sides ofadjacent mounting members in contact, whereby said longitudinallyextending brush units are disposed in circumferentially spaced relationaround the core with the brush portions thereof extending radiallyoutward.

2. A brush roll according to claim 1, wherein the core is of tubularopen ended formation.

3. A brush roll according to claim 2, wherein the mounting membersexceed in length the lengths of their contained brush units, whereby toprovide exposed free end portions of said mounting members, and annularcaps aflixed to the core in embracing relation to said free endportionsof the'mounting members and in abutting relation to the ends ofbrush units contained in said mounting members.

4. A brush roll comprising a cylindrical tubular core having open ends,a plurality of longitudinal brush units, each brush unit comprising abacking member of substantially U-shape in cross-section and a foldedbristle assembly having its fold imbedded and secured in the backingmember with the bristles projecting radially therefrom, a brush unitmounting means comprising an elongated holder formation provided With abase flange and a radially projecting mounting flange, said base flangebeing spirally Wound around and secured to said core, said mountingflange having openings to receive the backing members of longitudinallyextending brush units, whereby to dispose said units incircumferentially spaced relation around the core, and means cooperativewith said openings operative to prevent radial displacement of saidbrush unit backing members therefrom.

References Cited by the Examiner UNITED STATES PATENTS 5/00 Richards15--179 8/32 Raisch.

9/53 Lombardi 15-183 3/56 Lombardi 15183 7/56 Rowland 15l83 11/62Peterson 15-183 1/63 Peterson 15--202 5/63 Nelson 15181 FOREIGN PATENTS3/60 Sweden.

CHARLES A. WILLMUTH, Primary Examiner.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No.3,200,430 August 17, 1965 Edward Fa Haracz It is hereby certified thaterror appears in the above numbered patent requiring correction and thatthe said Letters Patent should read as corrected below.

Column 4, line 46, for "packing" read backing Signed and sealed this19th day of April 1966.

(SEAL) Attest:

ERNEST W. SWIDER Attesting Officer EDWARD J. BRENNER Commissioner ofPatents

1. A BRUSH ROLL COMPRISING A CYLINDRICAL CORE, A PLURALITY OFLONGITUDINAL BRUSH UNITS EACH COMPRISING A BACKING MEMBER HAVING AGENERALLY U-SHAPED CROSS-SECTION AND A FOLDING BRISTLE ASSEMBLY HAVINGITS FOLD IMBEDDED AND SECURED IN THE PACKING MEMBER WITH THE BRISTLESPROJECTING RADIALLY THEREFROM, AND A PLURALITY OF LONGITUDINALLYEXTENDING BRUSH UNIT MOUNTING MEMBERS HAVING A POLYGONAL CROSS-SECTIONCOMPRISING A BASE, A TOP WIDER THAN SAID BASE, AND AT LEAST TWOINTERMEDIATE SIDES INCLINED INWARDLY FROM SAID TOP TOWARD SAID BASE,EACH OF SAID MOUNTING MEMBERS HAVING AT LEAST ONE OUTWARDLY OPEN CHANNELOF GENERALLY U-SHAPED CROSS-SECTION EXTENDING LONGITUDINALLYTHERETHROUGH, SAID CHANNEL BEING ADAPTED TO RECEIVE AND HOLD THE BACKINGMEMBERS OF THE LONGITUDINALLY EXTENDING BRUSH UNITS WITH THE BRUSHPORTIONS EXTENDING THROUGH SAID CHANNEL, SAID MOUNTING MEMBERS BEINGSECURED TO AND AROUND THE EXTERNAL SURFACE OF SAID CORE IN CONTIGUOUSSIDE BY SIDE RELATION WITH THE BASE OF